/************************************************************************** * * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ #include "glheader.h" #include "enums.h" #include "image.h" #include "state.h" #include "mtypes.h" #include "macros.h" #include "swrast/swrast.h" #include "intel_screen.h" #include "intel_context.h" #include "intel_ioctl.h" #include "intel_batchbuffer.h" #include "intel_buffers.h" #include "intel_blit.h" #include "intel_regions.h" #include "intel_tris.h" #include "intel_pixel.h" #include "intel_fbo.h" #define FILE_DEBUG_FLAG DEBUG_PIXEL static struct intel_region * copypix_src_region(struct intel_context *intel, GLenum type) { struct intel_renderbuffer *irb; switch (type) { case GL_COLOR: return intel_readbuf_region(intel); case GL_DEPTH: /* Don't think this is really possible execpt at 16bpp, when we have no stencil. */ irb = intel_renderbuffer(intel->ctx.ReadBuffer->_DepthBuffer->Wrapped); if (irb && irb->region && irb->region->cpp == 2) return irb->region; break; case GL_STENCIL: /* Don't think this is really possible. */ break; case GL_DEPTH_STENCIL_EXT: /* Does it matter whether it is stencil/depth or depth/stencil? */ irb = intel_renderbuffer(intel->ctx.ReadBuffer->_DepthBuffer->Wrapped); if (irb && irb->region) return irb->region; break; default: break; } return NULL; } /* Doesn't work for overlapping regions. Could do a double copy or * just fallback. */ static GLboolean do_texture_copypixels(GLcontext * ctx, GLint srcx, GLint srcy, GLsizei width, GLsizei height, GLint dstx, GLint dsty, GLenum type) { struct intel_context *intel = intel_context(ctx); struct intel_region *dst = intel_drawbuf_region(intel); struct intel_region *src = copypix_src_region(intel, type); struct intel_region *depthreg = NULL; GLenum src_format; GLenum src_type; DBG("%s %d,%d %dx%d --> %d,%d\n", __FUNCTION__, srcx, srcy, width, height, dstx, dsty); if (!src || !dst || type != GL_COLOR) return GL_FALSE; /* Can't handle overlapping regions. Don't have sufficient control * over rasterization to pull it off in-place. Punt on these for * now. * * XXX: do a copy to a temporary. */ if (src->buffer == dst->buffer) { drm_clip_rect_t srcbox; drm_clip_rect_t dstbox; drm_clip_rect_t tmp; srcbox.x1 = srcx; srcbox.y1 = srcy; srcbox.x2 = srcx + width; srcbox.y2 = srcy + height; dstbox.x1 = dstx; dstbox.y1 = dsty; dstbox.x2 = dstx + width * ctx->Pixel.ZoomX; dstbox.y2 = dsty + height * ctx->Pixel.ZoomY; DBG("src %d,%d %d,%d\n", srcbox.x1, srcbox.y1, srcbox.x2, srcbox.y2); DBG("dst %d,%d %d,%d (%dx%d) (%f,%f)\n", dstbox.x1, dstbox.y1, dstbox.x2, dstbox.y2, width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); if (intel_intersect_cliprects(&tmp, &srcbox, &dstbox)) { DBG("%s: regions overlap\n", __FUNCTION__); return GL_FALSE; } } intelFlush(&intel->ctx); intel->vtbl.install_meta_state(intel); /* Is this true? Also will need to turn depth testing on according * to state: */ intel->vtbl.meta_no_stencil_write(intel); intel->vtbl.meta_no_depth_write(intel); /* Set the 3d engine to draw into the destination region: */ if (ctx->DrawBuffer->_DepthBuffer && ctx->DrawBuffer->_DepthBuffer->Wrapped) depthreg = (intel_renderbuffer(ctx->DrawBuffer->_DepthBuffer->Wrapped))->region; intel->vtbl.meta_draw_region(intel, dst, depthreg); intel->vtbl.meta_import_pixel_state(intel); if (src->cpp == 2) { src_format = GL_RGB; src_type = GL_UNSIGNED_SHORT_5_6_5; } else { src_format = GL_BGRA; src_type = GL_UNSIGNED_BYTE; } /* Set the frontbuffer up as a large rectangular texture. */ if (!intel->vtbl.meta_tex_rect_source(intel, src->buffer, 0, src->pitch, src->height, src_format, src_type)) { intel->vtbl.leave_meta_state(intel); return GL_FALSE; } intel->vtbl.meta_texture_blend_replace(intel); LOCK_HARDWARE(intel); { int dstbufHeight = ctx->DrawBuffer->Height; /* convert from gl to hardware coords */ srcy = ctx->ReadBuffer->Height - srcy - height; /* Clip against the source region. This is the only source * clipping we do. XXX: Just set the texcord wrap mode to clamp * or similar. * */ if (0) { GLint orig_x = srcx; GLint orig_y = srcy; if (!_mesa_clip_to_region(0, 0, ctx->ReadBuffer->Width - 1, ctx->ReadBuffer->Height - 1, &srcx, &srcy, &width, &height)) goto out; dstx += srcx - orig_x; dsty += (srcy - orig_y) * ctx->Pixel.ZoomY; } /* Just use the regular cliprect mechanism... Does this need to * even hold the lock??? */ intel_meta_draw_quad(intel, dstx, dstx + width * ctx->Pixel.ZoomX, dstbufHeight - (dsty + height * ctx->Pixel.ZoomY), dstbufHeight - (dsty), 0, /* XXX: what z value? */ 0x00ff00ff, srcx, srcx + width, srcy, srcy + height); out: intel->vtbl.leave_meta_state(intel); intel_batchbuffer_flush(intel->batch); } UNLOCK_HARDWARE(intel); DBG("%s: success\n", __FUNCTION__); return GL_TRUE; } /** * CopyPixels with the blitter. Don't support zooming, pixel transfer, etc. */ static GLboolean do_blit_copypixels(GLcontext * ctx, GLint srcx, GLint srcy, GLsizei width, GLsizei height, GLint dstx, GLint dsty, GLenum type) { struct intel_context *intel = intel_context(ctx); struct gl_framebuffer *fb = ctx->DrawBuffer; struct gl_framebuffer *fbread = ctx->ReadBuffer; struct intel_renderbuffer *irbread; struct intel_renderbuffer *irbdraw; struct intel_region *dst; struct intel_region *src; /* Copypixels can be more than a straight copy. Ensure all the * extra operations are disabled: */ if (!intel_check_blit_fragment_ops(ctx) || ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F) return GL_FALSE; intelFlush(&intel->ctx); if (type == GL_COLOR) { irbread = intel_renderbuffer(fbread->_ColorReadBuffer); irbdraw = intel_renderbuffer(fb->_ColorDrawBuffers[0][0]); if (!irbread || !irbread->region || !irbdraw || !irbdraw->region) return GL_FALSE; } else if (type == GL_DEPTH) { /* Don't think this is really possible execpt at 16bpp, when we have no stencil. */ irbread = intel_renderbuffer(fbread->_DepthBuffer->Wrapped); irbdraw = intel_renderbuffer(fb->_DepthBuffer->Wrapped); if (!irbread || !irbread->region || !irbdraw || !irbdraw->region || !(irbread->region->cpp == 2)) return GL_FALSE; } else if (type == GL_DEPTH_STENCIL_EXT) { /* Does it matter whether it is stencil/depth or depth/stencil? */ irbread = intel_renderbuffer(fbread->_DepthBuffer->Wrapped); irbdraw = intel_renderbuffer(fb->_DepthBuffer->Wrapped); if (!irbread || !irbread->region || !irbdraw || !irbdraw->region) return GL_FALSE; } else /* GL_STENCIL */ { /* Don't think this is really possible. */ return GL_FALSE; } src = irbread->region; dst = irbdraw->region; { GLint dx = dstx - srcx; GLint dy = dsty - srcy; /* Clip against dest, including scissor, in GL coordinates: */ if (!_mesa_clip_to_region(fb->_Xmin, fb->_Ymin, fb->_Xmax - 1, fb->_Ymax - 1, &dstx, &dsty, &width, &height)) goto out; srcx = dstx - dx; srcy = dsty - dy; /* Convert from GL to hardware coordinates: */ dsty = fb->Height - dsty - height; srcy = fbread->Height - srcy - height; /* Clip against the source region: */ dx = srcx - dstx; dy = srcy - dsty; if (!_mesa_clip_to_region(0, 0, irbread->Base.Width - 1, irbread->Base.Height - 1, &srcx, &srcy, &width, &height)) goto out; dstx = srcx - dx; dsty = srcy - dy; { intelEmitCopyBlit(intel, dst->cpp, src->pitch, src->buffer, 0, dst->pitch, dst->buffer, 0, srcx, srcy, dstx, dsty, width, height, ctx->Color.ColorLogicOpEnabled ? ctx->Color.LogicOp : GL_COPY); } out: intel_batchbuffer_flush(intel->batch); } DBG("%s: success\n", __FUNCTION__); return GL_TRUE; } void intelCopyPixels(GLcontext * ctx, GLint srcx, GLint srcy, GLsizei width, GLsizei height, GLint destx, GLint desty, GLenum type) { if (INTEL_DEBUG & DEBUG_PIXEL) fprintf(stderr, "%s\n", __FUNCTION__); if (do_blit_copypixels(ctx, srcx, srcy, width, height, destx, desty, type)) return; if (do_texture_copypixels(ctx, srcx, srcy, width, height, destx, desty, type)) return; DBG("fallback to _swrast_CopyPixels\n"); _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type); }